含硫烟气的硫化钠-硫磺法脱硫工艺模拟及优化  

Simulation and Optimization of Desulfurization Process of Sulfur-Containing Flue Gas by Sodium Sulfide-Sulfur Method

作　　者：吴金奎 陈晨[1] 屈海彬 赵子云 陈榆 党亚固[1] Wu Jinkui;Chen Chen;Qu Haibin;Zhao Ziyun;Chen Yu;Dang Yagu(College of Chemical Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川大学化学工程学院,四川成都610065

出　　处：《化学反应工程与工艺》2018年第6期535-542,共8页Chemical Reaction Engineering and Technology

摘　　要：采用改进的硫化钠-硫磺法联合处理含硫烟气与黄磷尾气,使含硫烟气达到超低排放标准。利用化工模拟软件Aspen Plus对300 MW机组的电厂烟气脱硫进行了全流程模拟,并利用Aspen Plus灵敏度分析和Comsol Multiphysics软件对Na2SO4还原反应条件如温度、反应器体积、Na2SO4粒径等进行了优化。通过模拟可知,经处理后的尾气满足超低排放标准,同时可副产12 kt/a的硫磺粉与18 kt/a的工业级液体CO2,为改进硫化钠-硫磺法的工业应用提供了基础数据。The improved sodium sulfide-sulfur process was used to treat sulfur-containing flue gas and yellow phosphorus tail gas,to meet the ultra-low emission standard of sulfur-containing flue gas.The whole desulfurization process of flue gas from 300 MW power plant was simulated by software Aspen Plus.And the reduction reaction conditions of Na2SO4 such as temperature,reactor volume and Na2SO4 particle size were optimized by Aspen Plus sensitivity analysis and Comsol Multiphysics software.It could been showed that the treated tail gas met the ultra-low emission standard,and 12 kt/a of sulfur powder and 18 kt/a of industrial grade liquid carbon dioxide were produced at the same time.The work provides basic data for the industrial application of improving sodium sulphide-sulphur process.

关 键 词：含硫烟气 二氧化硫 脱硫 硫化钠 硫磺 

分 类 号：TQ028[化学工程]